155459 has 4 divisors (see below), whose sum is σ = 157416. Its totient is φ = 153504.

The previous prime is 155453. The next prime is 155461. The reversal of 155459 is 954551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155459 - 2⁴ = 155443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854 + ... + 1019.

It is an arithmetic number, because the mean of its divisors is an integer number (39354).

2¹⁵⁵⁴⁵⁹ is an apocalyptic number.

155459 is a deficient number, since it is larger than the sum of its proper divisors (1957).

155459 is an equidigital number, since it uses as much as digits as its factorization.

155459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956.

The product of its digits is 4500, while the sum is 29.

The square root of 155459 is about 394.2828933647. The cubic root of 155459 is about 53.7698250287.

The spelling of 155459 in words is "one hundred fifty-five thousand, four hundred fifty-nine".